Apparatus for gasifying and distilling solid fuel



June 24, 1930 E. ROSER 1,765,702

I APPARATUS FOR GASIFYING AND DISTILLING SOLID FUEL Filed DefigEl, 1925 s Shets-Sheet 1 I Z Attorney.

.Eune 24, 193o E. ROSER 11,765,702

APPARATUS FOR GASIFYING AND DISTILLING SOLID FUEL Filed Dec. 51, 1925 3 Sheets-Sheet 2 i g b 10 FL" .4 i

- T I I L y $33)? k 0 d/ "fix c 7 5277274710! ESQ?- zja W June 24, 1930. RQSER 31,765,702

APPARATUS FOR .GASIFYING AND DISTILLING SOLID FUEL Filed Dec. 51, 1925 5 sheets-sheet s E mund 7Posar Patented June 24, 193% UNITED STATES nnmunn nosna, or nocnuin, seam APPARATUS FOR GASIIYIN'G AN D DISTILLING SOLID FUEL Application fllerl December 31, 1925, Serial No; 78,636, and in Germany July 6, 1925.

drum in which the coal is slowly moved so that the larger part thereof is brought into direct contact with the heated wall of the drum. In the practice of the invention the said chambers are rovided between two concentric drums an transverse and longitudinal partition walls. In one embodiment of the invention the outer drum is stationary while the inner drum, whichhas the partition walls secured thereto, is rotat;

able, and the inner drum provides the passage for removing thegas generated from the fuel.

- When thus constructing the apparatus a large amount of fuel can be charged into the same and, when rotating the drum, the fuel is brought into contact with the larger part of the outer drum exposed to the heating g In the iplfeferred construction the gasification is rther improved by also heating the inner drum, the heating ases being conducted in parallel or in series through the inner drum and alon the outer drum.

For the urpose of exp aining the. invention severa examples embodying the same have been shown in the accompanying drawings, in which the same reference characters have been used in all the views to indicate corresponding parts. In said draw- S 1, is a diagrammatical elevation partly in section taken on the lin'e 1-1 of i .2 Fig. 2, is a sectional elevation taken on the line 2-2 of Fig. 1,

open into the i drum from which the Fig. 3, is an elevation partly in section taken on the line 3-'3 of ig. 4 and showing a modification,

ig. 4, is a. sectional elevation taken on the line 44 of Fig. 3,

Fig. 5, is a vertical section showing a molified construction of the rotary .drum, an

Fig. 6, is a vertical section showing A another modification. e

In the construction shown in Figs. 1 and 2 my improved apparatus comprises a chamber 1) formed in brick-work or other wise and having a cylindrical drum 0 of smaller diameter mounted therein. Concentrically within the said drum there" is a rotary drum 0?, which carries-transverse and longitudinal partition walls 6 and f dividing the annular-space included between the drums '0 and d into chambers g. As appears from Fig. 2, the longitudinal partition walls 7 are disposed substantially tangentially of the rotary drumd. The fuel, such as bituminous coal or the like, to be gasified is supplied to the said chambers g throu h pipes 71. leading from a hopper h, and it is delivered into the chambers -g at the top of the drum 0, whereupon it is carried by the inner drum dand the parti- J tion walls rotating in anti-clockwise direction to a chute d after performing nearl a complete revolution. The material '5- charged through the chute i may be coke, carbonized residue, slags, ashes or thelike, according to the particular nature of the 3 fuel use and to the details of carrying through the working process. To the partition walls f pipes is are secured, whicher drum and conduct the gases generated from the fuel into the said go gases are removed to a place of further treatment. For heating the fuel a burner a is provided, the

combustion gases of whi h fl through the i chamber 5 and around the drum 0 and cses cape through an outlet (to a stack or means for drying and preheatingthe fuel.

I wish it to be understoodthat I do not limit myself to the construction shown in Figs. 1 and 2, in which theouter drum is too stationary and the inner one rotatable,-and that in some cases I construct an apparatus in which the inner drum is stationary while the outer one is rotatable.

The modification shown in Figs. 3 and 4 is similar in construction to the one described with reference to Figs. 1 and 2, and the same reference characters have been used to indicate corresponding parts so that it is not necessary to repeat the description of the said parts. As distinguished from Figs. 1 and 2, theapparatus shown in Figs. 3 and 4 is provided with means for circulating the heating medium successively through the inner drum d and the outer chamber 6. As shown the inner drum (1 is provided at its left hand end with a burner 4, and it communicates through openings 5 with the.

right hand end 6 of the chamber provided between-the inner drlun d and the outer drum and the said chamber communiing the fuel.

cates through openings 10 with the heating chamber 6, which heating chamber is provided with an outlet 7 connected with a stack or with means for preheating or dry- The drum (1 is provided at the right of the openings 5 with a partition 11, and at the left ofthe said partitions the chamber 6 is separated from the chambers g by means of annular disks 61 and 62 secured respectively to the inner and outer drums d and c and provided respectively with interengaging concentric ribs 60, thesaidplates and ribs providing a packing medium preventing the flow of the products of-combustion from the chamber6 to the adjacent chamber g, and vice 'versa, preventing the flow of the combusible gas generated from the fuel into the chamber 6. The partition 11 carries pipes 1, which are closed at their left hand ends and open into the chamber 2, and which have the inner ends of the pipes I: connected thereto.

In the operation of the apparatus the burnt gas circulates through the inner drum (1, the openings 5, and the chambers 6 and b, whereupon it is discharged through the outlet 7. The combustible gas generated or distilled from the fuel in the chamber flows through the pipes k and 1 into the c amber 2, from which it is dichargedthrough the outlet 3.

The drums d shown in Figs. 1 and 2, and 3 and 4 are supported by means of rings 12 on rollers 13, and they are adapted to be ropipe 16 is provided, and the said pipe is preferably provided with a suitable ihsulating medium 17. It will be understood that also, the pipes 1 shown in Figs 3 and 4 may be provided with a suitable insulating medium.

In the constructions shown in Figs. 3, 4 and 5, the heating gas flows at first through the inner drum (Z and thereafter through the outer chamber 1), but I wish it to be under-- stood that I do not limit myself to this feature, and that in some cases I pass the gases first through the chamber 1) and thereafter through the drum (Z.

In some cases I provide separate heating means one for the inner drum d and constructed in the manner described with reference to Figs. 3 and 4, and the other for the chamber b and constructed in the manner described with reference to Figs. 1 and 2.

The modification shown in Fig. 6 is similar to the one described with reference to Figs. 1 and 2. But for removing the combustible gas generated from the fuel, pipes 8, 8, are provided which open intothe fuel heating spaces provided between the drums c and (l and connect the same with gas outlet pipes 18.

IVhile in describing the invention reference has been made to particular examples M the constructions shown in the drawings,

and that various changes may be made in the general arrangement of the apparatus and the construction of its parts without departing from the invention.

I claim:

1. In an apparatus for producing gas, consisting of an outer drum and an inner drum arranged with an annular space between them, the inner drum being rotatable, longitudinal and transverse partition walls arranged between the drums and subdividing the annular space therebetween into a plurality of independent fuel chambers, said partition walls being secured to one of the drums and having a mere clearance relation to the opposed face of the other drum, means connected to the outer drum for charging the independent chambers with fuel, means for heating the fuel in the chambers whereby to liberate gas therefrom, and pipe connections in communication with said chambers connected to'one ofthe said" drums and forming outlet passageways for the gas lib erated in the chambers.

1 2. In an apparatus for producing gas, consisting of an outer drum and an inner drum arranged with an annular space between them, the inner drum being rotatable, longltudinal-and transverse partition walls arranged between the drums and subdividmg the annular space therebetween into a plurality of independent fuel chambers, said partition walls being secured to the inner drum to rotate therewith and having a mere clearance relation to the opposed face of theouter drum, means connected to the outer drum for charging the independent chambers with fuel, means for heating the fuel in the chambers whereby to liberate gas therefrom, and pipe connections connected with the inner drum entering into and assing in to the chambers for collecting t e gas liberated therein,said pipe connections form.- ing outlet passageways for removing the collected gas through the inner drum.

3. In an apparatus for producing gas, consisting of an outer drum and an inner drum arranged with an annular space between them, the inner drum being rotatable,

partition walls arranged between the drums subdividing the annular space into a plu-- rality of independent fuelc ambers and into at least one heating chamber for the circulation of a heatin medium said partition walls being secure to one of the drums and having a mere clearancerelation to the opposed face of the other of the drums, means connected to the outer drum for char g chamber.

chamber and sald surrounding heating 4. In an apparatus for producing gas, consisting of an outer drum and an inner drum arrangedwith an annular space between them, the inner drum being rotatable, partition walls arranged between the drums subdividing the annular space into a plurality of independent fuel chambers, said partltion walls being secured to one ofthe drums and having a mere clearance relation to the opposed face of the other of the drums, means connected to the outer drum for charging the independent fuel chambers with fuel, means for heating the fuel cham bers whereby to liberate gas from the fuel therein, pipes connected with the inner drum entering into and passin into the fuel chambers for collecting t e gas liberated therein, and a discharge condult for the col-v lected gas connected with said'pipes and disposed within the outer drum. i

5. In an apparatus for producing gas, con-' sisting of an outer drum and an inner arranged with an annular space between them, the inner drum being rotatable, partition walls arranged between the drums and subdividing the annular space therebetween into a plurality of inde endent fuel chambers, said partition wal being secured to the inner drum to rotate therewith and having a mere clearancerelationto the. opposed face of the outer drum, means connected to the outer drum for charging] the independent chambers with fuel, means for heating the fuel in the chambers whereby to liberate gas therefrom, and ipe connections connected ,to said partitions for collectin "the liberated in said chambers and disc argmg the same through the inner drum.

In testimony-whereof I hereunto affix my signature. I EDMUND ROSER. 

